Fastener



R. J. CARNEY.

FASTENER.

APPLICATION FILED FEB. 15, 1921,

Patented Oct. 10, 1922.

Permeable; ief eaa p i RALPH a". banner,

Suffolk and v State of Massachusetts, have in- MAINE: a

OPE ALLSTON, BOSTON, COMSPANY, F CAMBRIDGE.

Massi-ionusnrrs; hssrenon. TO; Chen I massncnusnrrrs, A connonarron on nasrnnnnt To all whom it ma concern? i I Bejit known that l, RALPH J. citizen of the United States, of Allston, city C arter, a and a resident of Boston, in the c u ty of vented .anlmprovement in, Fasteners, of

i which Y the following 7 description, in conne in separable fasteners.

parts included in the socket, and, more .tion with the accompanying specification, like charactersgo-n the drawof the socket, more fully described hereinafter; and Y Figure l is a front elevation of the fastener; j j p p Fig. 2 is a section: on the line 2-2 of igi v ig. 3 isa section on the line 3*31 of Fig. 4; is an end elevation of. one of the fully described; hereinafter;

Fig. 5 is a side elevation of Fig.4; Fig.6 is an end elevation of another part Fig. 7 is a" section on the line 7 of Fig. 6*, being partly inelevation i i Referring tothe drawings and to the preferred form of my invention selected for illustrative purposes, I have shown a stud in-, cluding ahead 7 a neck 8, a shank 9; a base 10 and a screw 11. The stud, as illustrated, preferably presents an abrupt shoulder between thefhead 7 and the neck 8, theineck 8 shank 9is also perferably relatively short.

being preferably, as illustrated, relatively short "andpreferably having a relatively ab; rupt shoulder 'rearwardly thereof; The

Thebase 10 may be hexagonalorxof other I preferably. provides abearing surface lying immediately rearwardly of the shank 9 and nonscircular shape "to providea grip for a wrench when screwing the stud to its carrier, typified by the woodlil, which may be a portion of an automobile body. The base 10 preferably perpendicular to the longitudinal axis of the stud. L

the socket acting through 'ing 30 engaging the cam piece 19 and in its outermost position. 9 1n the cam portion 19 's' engaged by the The preferredfforrn of socket illustrated maybe carried by a flexible fabric 13;"sueh for. instance as the curtain of an automobile.

The socket may include stud-engaging j aw means typified by the projectingportions 1e,

14;,14t (Fig l) on apreferably rotatable part l5which; as illustrated 'is preferably rotatable about an axis eccentric to the axis of the stud. Rotation oflthecccentric part 15 4 is preferably actuated intermittently, step by step, a partialrotationfof say sixty de grees moving the jaws 14 from stud-engaging to stud 'releasing position and conversely from stud-releasing to stud-engagingposition'. This intermittent rotativefymovement may be and preferably is effected by pushing on a part projecting from and carried by i any suitable mechanism. In the preferred form of myinventionillustrated, the push button 16 is provided with projections lugs 17 engaging slots 18 part 15. The

typified by the in the rotatable push button 16 is also provide d-with projecting means typified-by the bosses 2Q engaging cami, slots in a surround mg cam p1ece19 which'is not rotat ve. The cam piece 19 may be securedto the back plate 21 of the socket by bent-over projections 22 penetrating the back plate 21, and the socket as a whole may be secured to the socket-carrying fabric or curtain 13 by aisecuring casprefprongs 31 penetrating plate 32 and back plate the last-mentioned plate erably provided with a front attaching 21, being bent over at 33. j v i j i A spring 34: is providedbetween the rotative parts 15 and the push button loand tends to keepthe push button part always The cam race projections 20 on the push button part 16, this cam race preferably being formed. as best illustrated in Fig. 7. When the socket is engaged with. thestud and the parts are in their normal relation, as illustrated in Fig. 2, an'inward push onpthe push button 16 will cause rotation of the push button 16 and the rotative part xlfig wvhich must rotate therewith, by reason of; the engagement through the the projections or bosses 20 thereon will be at the beginning of the inward movement at the position 4.0 indicated. in. Fig. 7. The

slotl8. The rotation of the push button 16 will take place because I v tion as (Fig. 7 corresponding to the position 40 initially occupied prior to the pressing inward of the push button. The outward movementof the push button will be acnow the companied by sufficient rotative movement thereof occasioned by bearing-of the boss 20 onthe cam'surface 4:4; to leave the parts in position so that the next inward push on the button, coupled with its outward movement will produce a further sixtydegree rotative movement of the push button and the, rotative part carrying the stud -engaging; 'aws. Assuming the socket to be locked to the stud by reason of engagementof one ofthe jaws ll (Fig. 4E) behind thehead of the stud, an inward push on the pushbutton and release thereof will turn the part 15 sixty degrees sothat the head of thestud will lie opposite the recess (Fig. 4.). so that the socket may be freely removed from the stud.- If socket be again placed over the head of the stud and the push button again pressed and released, the rotative part turning another sixty degrees, will bring another projecting jaw portion l lwbeneath the head of the stud to effect locking engagement. Separation of stud and socket arising frombodily movement of the socket as a wholerelative to the stud is prevented because the aperture in the back plate 21 of .the socket preferably fits relativelyclosely the shank portion 9 of the stud. Pressure on the press button cannot move the socket as whole any substantial distance axially of the stud because the backplate Qlbears against the shoulder or bearingsurface at the front of the base 10 of the stud.

. VVhile I have shown and described a preferred form of one embodiment of any invention, it will be-understood that changes involving omission, substitutioiu alterati and-reversal of parts, and even changes in the mode of operation, may be made without departing from the scope of my invention,

which is best defined in the following claims.

Claims; j 1.. A. separable fastener comprising, in combination,..a,stud having a head and a neck, and a socket. including a plurality of stud-engaging jaws and means for progressivelypresenting said jaws for engagement with the neck of the stud.

2. Al separable fastener comprising, in combination, a stud having a head and a neck, and a socket presentinga rotativc part for alternate engagement and diseiuragcme'nt of aws means with the neck of the stud.

A separable fastener comprising, in combination, a stud having a head and a neck, a socket presenting a projecting push button and jaw men having alternate positions of rest in locked andunlocked position relative to a stud-receiving aperture in said socket, and operating means between said push button and said jaw means for actuating said jaw means by successive pressing and release of said push button.

4. A separable fastener comprising. in combination, a stud having, a head and a neck, and a' socket including a part providing jaw means, and means for rotating said part step by step about an axis parallel and eccentric to the axis of said stud.

socket for separable fasteners, including a rotative part, a push button, a spring' normally holding said push button in its projecting position and cam means operable by inward movement of said. push button for turning said rotativc part.

6. A fastener comprising a stud having :1 head and a neck, and a socket having a stud receiving aperture aw means and operating? means alternately pinto operative and inoper e positions or rest.

socket. for separable fasten rs presenting a stud-receiving aperture. and a part rotatable about an axis parallel and eccentric to the axis of the stud-rcceivinn aperture. said part presenting a plurality of stud engaging-1' jaws in spaced relationship.

9. .5. socket for separable fasteners pro- SQl'lfllltI a stud-receiving aperture and a rotative. part eccentrically mounted relative to the this of the studueceiving aperture and presenting a plurality of stud-engaging jaws in 5} seed relationship, and operating" means providing; for uni-dirccti m, step-by-stcp partial rotation of said rotativc part. succes .ve positions of-rest providing alternate positioning of said jaws in stud-engaging and stud-releasing positions. 7

In testimony whereof, I have signed mv name to this specification.

RALPH .T. CAR-NEX socket for separable fasteners pro- 

